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  • Wiley-Blackwell  (6)
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  • 1
    Electronic Resource
    Electronic Resource
    Über die Si—N-Bindung, XVI: Zur Darstellung von Silylaziden (1965)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 1814-1818 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der Umsetzung von Säureaziden mit Aminosilanen entstehen bei niedrigen Temperaturen in Gegenwart von wenig AlCl3 Silylazide und Säureamide, bei höheren Temperaturen unter N2-Entwicklung Silylharnstoffe. Mit Diaminodialkyl-silanen und Säureaziden können je nach den verwendeten Molverhältnissen Diazidosilane oder Azido-amino-silane gewonnen werden. Azido-aminosilane bilden sich auch bei der Komproportionierung von Diazido- mit Diaminosilanen.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19650980620
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  • 2
    Electronic Resource
    Electronic Resource
    Über die Si—N-Bindung, XXIII. Silylierung von Dipeptiden (1966)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 99 (1966), S. 780-781 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die physikalischen Daten einiger N-Trimethylsilyl-dipeptid-trimethylsilylester werden angegeben.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19660990309
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  • 3
    Electronic Resource
    Electronic Resource
    Synthese von Bis-epoxiden aus Dicarbonylverbindungen und Methylenbromid/Butyllithium (1975)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 2391-2396 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of Bis-epoxides from Dicarbonyl Compounds and Methylene Bromide/ButyllithiumSeveral acylic, cyclic, and aromatic dicarbonyl compounds react with methylene bromide/butyllithium to give the bis-epoxides 2,3,5,6,8-11, and 14. In some cases the mono-epoxides 1,7, and 13 are also obtained. Sterically strongly hindered carbonyl compounds yield the mono-epoxides only (e. g. bipivaloyl → 4).
    Notes: Eine Reihe offenkettiger, cyclischer und aromatischer Dicarbonylverbindungen werden mit Methylenbromid/Butyllithium zu den Bis-epoxiden 2,3,5,6,8-11 und 14 umgesetzt. In einigen Fällen werden daneben die Mono-epoxide 1,7 und 13 erhalten. Sterisch stark gehinderte Carbonylverbindungen ergeben nur das Mono-epoxid (z. B. Bipivaloyl → 4).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19751080726
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  • 4
    Electronic Resource
    Electronic Resource
    Einfache Synthese von 6-[4-Methyl-3-cyclohexen-1-yl]-hept-5-en-2-on, einer Vorstufe für α-Bisabolen und dessen Isopropenyl-Isomers. Terpene und Terpen-Derivate, 10. Mitteilung9. Mitt. siehe [1]. (1979)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 62 (1979), S. 2724-2731 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Simple Synthesis of 6-[4-Methyl-3-cyclohexen-1-yl]-5-hepten-2-on, a Precursor of α-Bisabolene and Its Isopropenyl IsomerThe alcohol 14 reacts with vinyl resp isopropenyl ether by Claisen rearrangement to give the aldehyde 16/17 resp. the ketone 3/4. Contrary to other reports this separable (E/Z)-mixture also occurs as a result of the synthesis following the pathway 7 → 8/9 → 10/11 → 12/13 (see also [2]). The bisabolene isomers 5 resp. 6 are obtained by reaction of 3 resp. 4 with methylidene triphenyl phosphorane. A mixture of 1 and 5. however, is formed from 3 via the alcohol 18 and its acetate 19. Likewise 4 reacts via 20 and 21 to give a (2/6)-mixture.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19790620824
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  • 5
    Electronic Resource
    Electronic Resource
    Acylation of hydroxyl groups in polymers with carbonic acid derivatives in the presence of tertiary amines (1992)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 193 (1992), S. 865-887 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Symmetrical carbonates were formed when the corresponding carbonochloridates containing electron-withdrawing groups were converted with tertiary amines in dry solvents at room temperature. 5-Norbornene-2,3-dicarboximido carbonochloridate (1) and bis(5-norbornene-2,3-dicarboximido) carbonate (5) were used for acylation of OH groups in polymers in the presence of tertiary amines under anhydrous conditions. The influence of the amounts of 1 and 5, the kind and amount of amines, the organic solvent, the reaction time and temperature on the yield of the active carbonate 7 was investigated using bead cellulose as polymer. The reaction based on the catalysis by strongly nucleophilic amines such as 4-dimethylaminopyridine (DMAP) was optimized for preparation of acylated polymers. The formation of cross-linking and cyclic carbonates 9 and 10, respectively, was observed as a side reaction. It was shown that carbonates 9 and 10 can also be obtained as the main products of acylation. The preparation of 9 was also carried out by treating 7 with an excess of DMAP. Examples are presented for the transesterification of 7 with compounds containing OH groups. The acylated polymers were characterized by a specific titration method, UV/VIS and IR spectroscopy. The mechanism of the DMAP-catalyzed acylation of polymers is discussed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1992.021930405
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  • 6
    Electronic Resource
    Electronic Resource
    Solarthermische Kraftwerke und Erzeugung von Hochtemperaturprozeßwärme (1992)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 64 (1992), S. 594-605 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Solar-Thermal Power Plant and the Production of High Temperature Process Heat. A description of the general energy scenario is followed by a discussion of the fundamentals of solar radiation and a discussion of the problems surrounding the coupling of solar energy with technical processes. A number of physical fundamentals relating to efficiencies and temperature are supplemented. The present status of solar-thermal technology is described for various systems and their components and a comparison made between the possible types of power plants with regard to their annual power production and the power production costs. The author then presents alternatives for the utilisation of solar energy as process heat and for conducting endothermic chemical reactions. The article closes with a brief account of the experimental possibilities offered by the DLR solar furnace at Cologne.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330640704
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